- Supports GSN ( Goal Structuring Notation )
- GSN Pattern Library use and prototype Type Checking function
- Consistency Checking of D-Case description
- Monitoring of target systems
What is an "assurance case"?System assurance has become very important in many industrial sectors. Submission of safety cases (assurance cases for safety of systems) to certification bodies is required when developing and operating safety critical systems, e. g., automotive, railway, defense, nuclear plants and sea oils. There are several standards, e. g. EUROCONTROL , Rail Yellow Book  and MoD Defence Standard 00-56, which mandate the use of safety cases. Furthermore, recently the medical device industry has also been requiring assurance cases .
There are several definitions of "assurance case" . One such definition is as follows .
"a documented body of evidence that provides a convincing and valid argument that a system is adequately dependable for a given application in a given environment."
-  EuropeanOrganisationfortheSafetyofAirNavigation. Safety Case Development Manual. European Air Traffic Management, 2006
-  Railtrack. Yellow Book 3. Engineering Safety Management Issue3, Vol. 1, Vol. 2, 2000
-  Workshop on Assurance Cases: Best Practices, Possible, Obstacles, and Future Opportunities, DSN 2004, 2004
-  http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/GuidanceDocuments/ucm206153.htm#6
-  http://www.city.ac.uk/informatics/school-organisation/centre-for-software-reliability/research
What is GSN (Goal Structuring Notation) ?GSN is a major graphical notation for assurance cases. It was developed by Tim Kelly and his colleagues at the University of York. See Tim's introduction paper:
- The Goal Structuring Notation - A Safety Argument Notation T P Kelly, R A Weaver, in Proceedings of the Dependable Systems and Networks 2004 Workshop on Assurance Cases, July 2004
What is D-Case?D-Case is an extension of assurance cases being developed in JST CREST DEOS project (see www.dcase.jp and http://www.jst.go.jp/crest/crest-os/osddeos/index-e.html). The letter "D" emphasizes our focus on Dependability. In particular, we have been studying dependability for open systems. For detail, please refer The Open Group standard "O-DA: Open Dependability through Assuredness" (https://www2.opengroup.org/ogsys/catalog/C13F).
D-Case Editor (version 1.00) is available from Eclipse network install. For more information, see following documents written in Japanese and English.
D-Case related softwareOther D-Case related software is downloadable from DEOS Home Page.
Old versions of D-Case Editors are also available here.
LicenseCopyright(c) Yutaka Matsuno
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- Hajime Fujita, Yutaka Matsuno, Toshihiro Hanawa, Mitsuhisa Sato, Shinpei Kato, and Yutaka Ishikawa, "DS-Bench Toolset: Tools for Dependability Benchmarking with Simulation and Assurance,"42nd IEEE/IFIP International Conference on Dependable System and Networks (DSN 2012),8 pages,Jun.2012.(Accepted).
- Yutaka Matsuno, Kenji Taguchi: Parameterised Argument Structure for GSN Patterns, Proc. IEEE 11th International Conference on Quality Software (QSIC 2011), 6 pages, to appear, July 2011 (Short Paper).
- Yutaka Matsuno, Hiroki Takamura, Yutaka Ishikawa: A Dependability Case Editor with Pattern Library, Proc. IEEE 12th International Symposium on High-Assurance Systems Engineering (HASE), pp. 170-171, Nov. 2010 (Fast Abstract).